fix ops' cn doc: reorder_lod_tensor_by_rank 、 WeightNormParamAttr、reader.creator.np_array、reader.creator.text_file、reader.creator.recordio !1240
Created by: DannyIsFunny
(1)reorder_lod_tensor_by_rank:
(2)WeightNormParamAttr:
(3)reader.compose
(4)np_array
(5)text_file
(6)recordio
